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Why does the panhandle pipe equation give me “better” answers than the fundamental equation?

A hydraulic engineer’s perspective

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Panhandle pipe equation versus fundamental equation

You’ve been dutifully using the fundamental pipe equation for all of your pipeline modelling, but now you’ve been confronted with evidence that the panhandle equation “provides better results”!

Should you go with the panhandle equation, which generally calculated a lower pressure drop for a given flow rate, or is there a good reason to stay with the fundamental equation?

Learn the history of these various equations, review a case study comparing the results of these equations side by side, and we will share our perspective on their use in your pipeline modelling.